反应详情

To a solution of 2,6-dimethoxy-biphenyl-4-carboxylic acid methyl ester (0.9 g, 3.3 mmol) in 10% aq. THF, an aq. solution of 5 N NaOH (5 mL) was added and the reaction mixture was refluxed for 5 h. After the reaction is completed, THF was removed completely under the vacuum and acidified with an aq. solution of 50% HCl. The resulting precipitate was filtered and washed thoroughly with water and dried to obtain the title compound (0.6 g, 70.5%).

1. temperaturethe reaction mixture was refluxed for 5 h
2. customTHF was removed completely under the vacuum
3. filtrationThe resulting precipitate was filtered
4. washwashed thoroughly with water
5. customdried